Question: What sub-province-level division starts with the letter "x"?
Paraphrase: What sub-province-level division begins with the letter "x"?
SPARQL (Wikidata): SELECT DISTINCT ?sbj ?sbj_label WHERE { ?sbj wdt:P31 wd:Q250811 . ?sbj rdfs:label ?sbj_label . FILTER(STRSTARTS(lcase(?sbj_label), 'x')) . FILTER (lang(?sbj_label) = 'en') } LIMIT 25 
Answer: Xiamen, Xiamen, Xi'an, Xi'an